Machine for rectifying electrotypes



Feb. 4, 1930. V w. w. M CARROLL MACHINE FOR RECTIFYING ELECTROTYPES Filed May 26, 1928 j 6 Sheets-Sheet 1 w. w. MCCARROLL/ 1 MACHINE FOR RECTIFYING ELECTROTYPES 6 Sheets-Sheet 2 Filed May 26, 1928 6 Sheets-Sheet 3 Feb. 4, 1930. w. w. M cARRoLL MACHINE FOR RECTIFYING ELECTROTYPES Filed May 26, 1928' anoento'a Feb. 4, 1930.

W. W. M CARROLL I MACHINE FOR REGTIFYING ELECTROTYPES Filed May 26, 1928 6 Sheets-Sheet 4 Feb. 4, 1930. w. w: MccARRoLL MACHINE FQR' RECTIFYING ELECTROTYBES Filed May 26, 1928 6' Sheets-Sheet 5 Feb. 4, 1930. w. w. McCARROLL MACHINE FOR RECTIFYING ELECTROTYPES Filed May 26 1928 6 Sheets-Sheet 6 6 MW F WW w, a m n I! 4 u m 7 m Y W Z 4 W, w 7% 8 amfl/z 2 7 1 x 0 2 4 Iii p 2 WW M W Patented Fab; 4, a 1930 I moannollnflom NEW, navam coismnowrcur m mmoal mmflmw IBQa s;

rtams --to improveinents: liponzmy Patents 35 amber sywn a anama ssueagoew;

hen-6 19 14: I

i The. preeentjinventionh-as-for one'of; its ob jeots an" improved meohanisrn for actuating t. 111 hah m r' pe ion and to li-lievvisefprovi-de improved meehanis ln the glass-bloelr d o f et e in l ll hammer-r Furtlrer the 1nventi0na n1s' to PIOVlClG 1mprovedinea-ns for efi'ecting siinnltaneons con- Anotherfohjeetofftlre'invention is 'tozprovide' improved means foriiniti ally foroingthe 'to'olagafnst the-plate and tljiierehyjthejlatter r s. mt b e et q apfl re qe e' s:

j 'hammeringforeeaand mifiirnizing injnryf tor.

, v e shdable.

;W1 "se slidable-in agbearing 6 formed in theupthe'plate.

, 'A still 'further-ohject'oftheinyentiomistov .pr ideimp i meens re ft net eg 25} blofek and: theftool holder and for-a1so*efi'ect;

l egiv rt le lfadi stm atsibfi lsleesfble kin; accordan'cea witlrl; electrotypes. of f varying v thicknesses, and fonfu'rther ae iwhic r c n. b entrelld ir ronerfrom concentration, (Til ie-Work;

V objegtsthegeinafier lisgtvfolrth lmldjmamf'tdi has-a handle15 connected thereto for ,conven- I 50 'tial secti0nof the lass block;

trol foftlie 'gl asslh loeli and'harnner operating ienee in operation Er e as;aepe zspee t em tlt z r ev m @5125 is}, anaenlargedgpartial i vfront alma- Fig. ,6 is a sectional viewofaportionv ofthe toolbl'ock or holder;

Fig. 7 is a section ,on line 7+7 ofFig: 6; Fig. 8 is a side elevation, partially in sec-p tion, of the glass block adjusting mechanism; v

Fig. 9 is a section OIl liIjleQE-Q of Fig. 8; Fig. 10 isa section on line 10 v of Figj l; Fig. 11 "is a detail View of the washer of Figs. 6; and 7; I i Fig, 12is a detail view in top plan'of the, means forsh-ifting theglassblock; and

Fig. 13 is a detail: side elevation of the. means for adjusting the glass block a-n'dthe tool carrier. In proceeding in accordance with thepres-- ent invention, a main frame l is employed having abed 2upon which an inverted'Ul-f shaped frame 3"isi'nounted. The horizontal portion or top of the frame 3 is provided- With a hearing 4'in which latter the lower end ofxa vertical interiorly threaded sleeve 5 is,

per end of a substantially Z-shaped bracket 7 that is bolted onto the top of frame 3. A

vertical'sh-aft 8 is threaded through the sleeve ited bya-stopg member 12inthe form of a bolt adj ustably threaded 1 into engagement with the-top of bra'oketfi; and; which is held in ad jnsted position by -aloekgn-ut 13.j The head s5 able-with theunderfaee of the weight 115 look-nut 5 '14 :is provided for the shaft 8} and The lower end #of thesh aft-8 is provided with a circular head -l6-wh ich engages with" a 19" is" perforated to receive shaft 8 and I isthreaded over the bossl'i' and is 'heldin place by-a loekrnut 20 The-sleeve has a pointer'2l tieal posts 23g the latterbeing formed :to re-'- 1 o c I 1 holder and are secured in ad usted position fit.

] opening provided therefor in said leg of ceive and being slidable on studs 25 that are rigidly secured to a slide 24. The slide is mounted in a dovetail guide 26 that is rigidly affixed to the under side of the top of frame 3.

A circular glass block 27 is removably mounted in a holder composed of a lower member 28 and an upper member 29, between which members the block is clampingly held through the medium of bolts 30. The upper member 29 is provided with opposed wings 31 to the upper faces of which are secured by bolts 32 the bases of bearing members 33, the V latter being provided with spaced perforated ears 34 to receive trunnions 35 projecting out wardly from opposite sides of the lower ends" of the posts 23. 1

For. the purpose of leveling the block, v

a bar 36 is disposed transversely across and above the glass block holder and has adjusting screws 37 at its ends which bear upon the by meansof lock-nuts 38. A threaded stem 39 is rigidly secured to the leveling bar 36 and projects upwardly therefrom and slidably through guide ears 40 formed on the adjacent post 23. F or the purpose of holding the screws 37 firmly against the glass block holder, a spring 41 is employed which encircles the stem 39 and at one end bearsagainst the-upper ear 40, while its opposite-end bears against a nut 42 adjustable on the stem. By adjustment of the nut thepressure of the leveling bar on the glassblock holder can; be varied as desired. 1

The glass 101001; 27 is provided with indexes 43on its lower face which are of varying forms and which are in registry with tools of corresponding forms, in accordance with the nature of the required rectification ofthe 'electrotypej Therefore in orderto bringthe desired toolinto registry with the pointer, the tools and also the glass block holder are slidable along the bed, and accordingly a rod 44 is secured at one end to the slide 24 and has its opposite end extending through, an aperture 45 provided therefor in the adjacent leg 60 of frame 3 and secured to the upper end of a vertical connecting bar 46. The lower end of bar 46 is secured to arod 47 (Fig.2) whichis also slidable through the adjacent leg 60 of frame 3.- A bracket 49 is secured to the said leg of frame 3 and has a quadrant50 formed. with spaced holes to receive a spring-pressed latching pin 51 operated by a lever 52'which latter is pivoted at 53 to an end of a handlever 54, the lever 54 being pivoted at 55 to the bracket. A pin 56 connects the lever 54 to the bar 46'so as to slide same and therewith the rods 44 and 47 A guide rod 57 is secured .to the cross-bar 46 and operates through an the frame. i

A lever is pivoted by means of a link 7 6 adjacent its front end to the top of frame 3, and has its said front end bifurcated and pivoted at 77 to an enlarged portion 78 formed on the sleeve 5 intermediate the ends of the latter, The outer or rear end of the lever 75 extends through a guide or yoke 79 is formed with an extension 84 which is perfo'rated to receivethe rod so as'to provide aguide for the rod. The intermediate portion of the rod 80 has a yoke85 rigidly secured thereto, the yoke .slidably embracing a rod 86 parallel to rod 80. A stopand a'locknut 87 are adjustable on rod 86, the stop nut engaging the top of theyoke. The upper end of rod 86 also extends through aguiding aperture provide-d therefor in extension 84 of frame 3, and has a coil spring 88; thereon which latterat one end abuts the under face of extension 84 and at itsopposite end seats on a stop nut 89. V v V c A yoke 90 is fixedlysecured to rod 86, by

-means of a taper pin orscrew 91 and has a roller 92journaled thereon, the yoke slidably embracing the rod 80. A control block 93 is fixedly secured by a taperpin orscrew 94to rod 80 andhas a foot provided with anadjustment screw 95, the later equipped with ailocknut. The screw 95 is employed to adjust an L-shaped slide 96 carried by the] block, the

slide being engageable with a locking arm 97 and with its adjustment screw 98.],The

locking arm is secured to a shaft 99 journaledinthe frame1. I

I A coil. spring 100 encircles themed 80 and at one end engages yoke 85 while its op osite end pressesdownwardly on yoke 90,'thereby h-oldin'gthe roller 92 of the yoke against a' cam 101 mounted on a shaft 102. Aconnecting rod 102 is pivoted to the cam 101 and is driven by an eccentric 103 on a main drive shaft 104. The shaft 104 has a pulley 105 thereon which is driven by a belt 106 that in turn is driven by a pulley 107 -mounted on shaft 102. "A motor 108 has acpulley 109 on its armature shaft which through the belt'110} drives apu lley 111on shaft 102.

A blower pump 112 has'a driving pulley 113 which is driven by a'belt 114'from a pul-"fl' 1ey 115 on shaft 102. An air conduit 116 exe tends upwardly from the blower and has a horizontal branch 117 which slidably te1escopes with a pipe 118that has a depending branch 119. The free or lower end of branch 119 is equipped with a nozzle 120 overlying the bed.

A turnbuckle 121 is pivotally connected at one end to a lug 122 on the control block 93 while its opposite end. is pivoted to the outer end of a lever 123 which latter in turn is pivoted at 124between itsends to and beneath the bed.2.' A second lever125is pivoted be- -fiWeenits ends at 126 to and beneath the bed and is connected at its inner end to the ad jacent end of the lever 123 by a pin 127 pivo tediat 128 to lever 125 and having a spring 1 .129 adjustably held against lever 123 bynuts .130. The forward end of the lever 125 is se-z cured to ahammeror'hammer head 131; by

means of nuts 132. A hammer collar 133 is 5 adjustably threaded on rod-131 and held thereon by a nut 134; Rod 131 is guided in its @vertical reciprocatory' movements by brackets 135 and 136 on theframe 1 and is tensioned by means of a main or heavy spring [137' which surrounds athimble 138'0nthe rod, the spring seating on the bracket 136 j and bearing against nuts 139.0n the rod 131. spring 140 lighter than the spring 13'? surrounds a-thimble 142 on the rod 131v and extends Within a second thimble 138, and

abutsnuts i141 threaded on the rod. The

, of the lighter spring 137 counterbalances the weight g hammer and v imparts a light stroke thereto. 4

- hammer actuating rod 143 is operated by a cam .144 on the shaft 104 and is provided with a tripper 145,,tl1e upper endof the rod being guided in a, sleeve 161 carried by a guide 160. The tripper is provided with an adjustable bit 175, whichisengageable with the hammer collar 133.

A vertical tripper rod 146 isguided by the brackets 135 and-136 and has a fitting 147 thereon, to whichlattera treadle rod 147 is pivotedat 148.. A'rod 149 ,is pivoted at one end at 150 to theopposite-end of the fitting 147 and is pivoted at its opposite end at 151 to an. arm'152 mountedonthe horizontal vshaft 99. Ajfo ot treadle 15.3 is connected to I 'the low er end of rod 147 and is pivotally mounted atits rear on arod 153 that is carri'ed by'brackets153 X Abracket 154 is fixed to the upper end of rod 146 and has a roller 155 journaled thereon, which latter is adapted to be engaged by a camslide 156 fixedlyinounted on the rod- 143. 1 The cam slide156istensioned by means of i a pair of springs157 mounted on rods 158 and .50;

abutting a bracket 158. Nuts 159 on the outer ends -of.'the.,rods"abut the bracket and enable adjustmentof the position of the cam 156 with respect to roller 155. The inner ends of the rods are connected to cam slide 55.

1'56 and slidably pass through guide 160 whichlatter is pivoted at 174 tosleeve 161.

' y The stems are providedwith fixed thimbles The tool; holder iscomposed ofa block157 slidable in the work bed 166 whichhas bores wherein, the stems or shanks158 of thevariously shaped tools 164 are slidably mounted.

' 1159 encircled by coil springs 160, the latter at one; end abutting the upper half. 161 of the holder and at their ,oppositeends being spaced from horseshoe shapedor split washers 162, which latter are mounted in countersunk parts 163 provided therefor in the lower half of the holder.

The thimbles thus restrict upward movement of the tools and thereby prevent the .tools from contacting with the glass block in case of negligence on the part of the operator. A slide 165 is, as shown in Fig. 1, mounted in aguideway provided therefor in the work table or'bed 166 and moves with the tool holder or block, being fastened thereto at 167.

In operation the belt 110 which is driven by the motor 108 effects continuous drive of the shaft 102 andthe latter through the belt 106 eifects continuous drive of the shaft 104. T he 3 cam 101 is continuously oscillated by the connecting rod 102 connected to the cam 1020f shaft 104, and through the roller 92 and the yoke causes constant reciprocation of the rod 86. Normally the latch 97 is engaged withs5 the control block 93 and thereby holds rod 80 in the depressed position of Fig. 3. Referring now to Fig. 4, it will be noted that the rod 143 carrying the tripper 145 is also continuously reciprocated by the cam 144 from the? shaft 104. Thus it will be noted that both .the rods 86 and 143. are being continuously reciprocated; lVhen a plate is to be rectified, the foot treadle 153 is depressed, which causes the rod 147 in Fig. 4 to bedepressed and 1: through rod 149 connected thereto by fitting 147, the shaft 99 will be rocked by its arm 152, and since as shown in Fig. 3 the latch 97 is connected to the shaft 99, the'latch will be disengaged from the control block 93 and' thelatter moving upwardly by the action of the cam 101 compresses the spring 100 and through the yoke 85 causes upward movementof the rod 80.

When the roller 92 moves downwardly on the low side of the cam, the spring 88 which hasbeen compressed by the upward movement of rod 86 then presses downwardly on the nut 89. and through the yoke 85 causes downward movement of the rod 80. The rod 80 is thusreciprocated and by virtue of being connected to the lever 75 effects vertical reciprocation of the sleeve 5, Fig. 8, and through the shaft 8 causes the bar 22 to ver- 7 tically reciprocate the glass block 27 through the medium of the posts 23, which slide on the studs 25. Thus the glass block is given a vertical reciprocal. motion. Referring to Fig. 2 and Fig. 3, it will be noted that the upward movement of the control block 93 causes similar movement of the turnbuckle 121 and the latter being connected to the outer end of lever 123'raises said end thereby depressing the opposite end of the lever and through the spring device 129 depresses the inner end of lever 125 and raises the outer toreciprocati'on ofthe hammer. Referring to Fig. 4, it will benoted that the downward c sagainstlth vwork so as to hold the latter against the glass block, and means to subsemovement of the rod 147 through the fitting 147 effects downward movement of the rod 146 which carries the roller 155 connected to rod 146 downwardly, and the-spring device 157 entering into action forcesithe cam i156 inwardly, thereby moving the bit'175of thetripper 145 into engagement with thehainmer collar 133 thereby depressingthefllatter and the hammer rod 131 against the action of its springs 137 and 142. On the downwardnlovement of the rod 148, the roller 155 ridsprings, causes the hammer'to deliver its blow "t the tool. V V I When the treadle is released, :sa-me moves. the rod 14'?" up-wardly'thereby rockingthe r shatt99 to reciprocate the-latch. 97 to the: operativepositionof. F ig. 3, in which posi tion thelatch holds the rod .80 depressed and inactive,.and likewise restores the roller 155 to the position of Fig. 4, in which the hammer operating-means is likewise rendered inactive. Fromi theforegoing, it will be noted that the rod 80v which actuates not only the lever 7 5 which reciprocates theglass block, but also the levers. 123 and 125 for moving "the ham- :mer head 131: against-the tool, is normally inactive, as is also themeans ot the hammer 131 for causingmsame' to deliver itsb'low,

while the rod 86 which upon release of the latch 97 operates the rod 80, is continuously active, as is also the rod 143 whichactuates.

, the hammer blow :deliverin'g. means.

Referring to. Figs/6 and 7,'itwill be seen that due to the thimbles l59 operative'movement of the tools against the workisrestri'cted, the limit of movement being such so that the tools cannot come in contact with the glass block when thestop member 12-is set properly.

It W111 further be mad that by-release "or the lock-nut 14, the rod 8 can be rotated by the'hand wheel 9 'to'moveth'eglass block in operative relation to thework in *accordance with the thickness of *the-la'tter, and by manipulation of the lever '54, the cross member 46 through the rod 44 will "move the slide 24 and therewith the glass block and also-the normally presses down on the hammer r0d'131 so as to assist in tensioning the latter.-

l/Vhat is claimed is:- V 1. In combination with a' glass block, a

tool and a hammer for actuating the 'tool,a pair of pivoted levers, a resilient connection between the levers, a hammer headconnected.

to one iofthe levers, means to initially operate: said leversathereby to move the tool quent ly -=reciproeate -the hammer.

25' In combination with a vertically reciprocal glass "block, a lever mechanism pivotally connected to the block, aspring tensioned 1 reciprocal rod 4 connected to the lever mechanism, a second-spring tensioned? 'reciproca-l rod, means connected to th'e 'second rod to reci-procate-same and to tension 4 the spring of the first rod, and means connected to the *first rodto tension the spring of the 7 second rod.

3.-Incombination with a tool "and a vertically reciprocal glassblock,-' means having connection with the'block to'reciprocate same, means'to actuate said reciprocating means,

--means to latch said actuating meansag'ainst; movement, a hammer-normally 1noperat1ve,

means to actuate the-hammer,=and:means for simultaneously"releasing the latchand for, renderingsaid hammer actuating means operative. I f 4." In combination with-a tool and a -vertically reciprocal; glass block, means having connection with the block-to reciprocate same,

means 'to' actuatesaid reciprocating"means, V

means to latch -.said actuating-means against movement, a hammer normally noperative, means to actuate thehammer, means to move the tool against the work andthereby the latter against the glass block, in advance of the hammer operation, and means for simul taneouslyreleasing thelatch and actuating said 1001- movi'ng-means and forthen rendering the hammersact-uating means operative. i 5. In combination with atool and a ver- 10a ciprocate the block, means connected to the f tically reciprocal glass block, means torehammer to move same against the tool. thereby to cause the tool to force the workagainst the block, means to reciprocate the hammer, normally quiescent means connected to "the" block reciprocating means and to; said means.

for'moving the hammer against thetoolto operateeach,continuouslyoperated means to I each ofithe normally quiescent means.

\ driver said normally; quiescent means, nor- -mally 'quiescent means to reciprocate the hammer, continuously operated:v means to drive *said 'normally" quiescent hammer re- "6. Incoinbinationwith-a tool andavertically reciprocal glass-block, means to effect movement of one of-said-elements,-=and means -"to operatei said first-named ,means "including 7 .=reciprocal ;-'means,- means: to constantly ac tuate said-reciprocal means, a second' re ciproca'l me'ans connected to said first-named meansflatchingmeans for the second recip- 55 tensioned device, a rocking cam, means to V tically reciprocal glass block, means to efiect rocal means to normally render same inoperative, and means to effect operation of the second reciprocal means and thereby the first-named means upon release of the latching means. 1 7 In combination with a tool and-a vermovement of one of said elements, and means to operate said first-named means including a reciprocal rodconnected to said first-named means and havinga spring thereon, a second reciprocal rod having a spring thereon, a

' member rigid on the second rod and engaged with the spring thereof and slidably connected to the first rod, an abutment on the first rod to engage the member, an arm rigid 0n the first rod and slidably connected to the second rod and engaged with a spring of the latter, means to constantly reciprocate the first rod, a control member rigid on the second rod, latching means for engaging the control member to hold the second rod depressed and with itsspring under tension, and means to release the latching means.

8. In combination with a tool, a reciprocal glass block and a hammer, means to initially move the tool against the work, normally quiescent means to reciprocate the hammer, means having connection with the block and with said tool-moving means to actuate each, latching meansfor said block and tool actuating means to normally hold same inoperative, continuously driven means to actuate the hammer reciprocating means and the block and toolactuating means, a shaft connected to the latching means, means connected to the shaft to render the hammer reciprocating means operative, and foot-operated means to actuate the shaft thereby to release the latch and render the hammer reciprocating means operative.

9. In combination witha tool and a reciprocal glass block, means to actuate one of said elements including a reciprocal spring I tensioned device, a second reciprocal spring tensioned device, means to effect constant reciprocationof the second device, means to releasably hold the first device against movement, and means to actuate the first-device from the second device upon release of said holdingmeans.

10. In combination with a tool and a reciprocal glass block, means to actuate one of said elements including a reciprocal spring tensioned device, a second reciprocal spring ciprocation of the'second device, means to actuate the first device from the second device, and imeans to latch the first device against reciprocation without affecting said movement of the second device.

11. In a rectifying machine, a tool block "having spaced upper and lower portions formed With tool receivin'g bores, toolsrecip rocal in thebore s, thimbles on thetools 'disposed in said space between the 5 portions of the block and; having their upper ends engaged with theupper portion to limit upward m( vement* of the tools, abutmentsspaced" below 5 th'e lower ends of tliethiiiibles' and" car'- ried by the tools to engage the lowerends of the thimbles, and springs surrounding the thimbles "and engaged with the "abutments and with the upper'portion ofthe block,

12. In a rectifyingmachine, a tool "block having spaced upper and lower portions formed with tool receiving bores, tools reciprocal-in'the bo'res, thimbles on thetools disposed in-said space'between the=portions of theblock and 'having their upperiendsengaged with the upper portion to limit upward movement of the tools, shoulders on thetools, split members surrounding the tools and seated on the shoulders and spaced below the lower ends of thethimbles, the lower= portion of the block having countersunk portions receiving the members, and springs surrounding the thimbles' and engagedwith the members and with the upper portion of the block;

'13: In combination with a tool,-areciproca1 hammer rod, a thimble surrounding the rod, means slidably supporting thelower end of thethimble, an abutment on the thimble, a spring 'surrounding the thimble' and engaged With said abutment andsuppoi'tin'g means, a collaron thehammer, a lighter springsurrounding-the rod andengaged with the collar and extending through" the thimble and seated on'saidsupporting means, and means to depress the collar and thereby compress said springs-and to release the collar.

- 14. Incombination' with a tool, a reciprocal hammer, a heavy spring device associated with the'hamme'r to operate same to deliver a blow, a lighter spring device also associated with the "hammer to operate same-to deliver a blow,a lighter spring device-alsoassociated with theha-mmer to operate same and to"coun-- terbalanc'e the weight of the hammer, =-'and means" tomove the hammer" against the tension of said devicesand to then release same to cause the hammer to deliver its blow. d

15. In-combination with a tool, a reciprocal also connected to the shaft for releasably holding the blow delivery means inactive, and means operable upon releasing movement of the shaft for effecting operation of each of the normally inactive means from its said actuating'means.

16. In combination with a tool and a hammer therefor, a lever device controlling the hammer, and-means to actuate the lever device thereby to initially cause the hammer to lightly engage the tooland the latter to engage the work, and means to subsequently operate the hammer. r

I 7 1 7 In combination with-a tool and a ham mer and a glass block, means to move the hammer into light engagement with the tool, means to actuate said first-named meanshaving a vertically reciprocal part, means to releasably hold saidpartdepressed, and means which upon release of said holding means effects upward movement of the hammer moving means to engage and move the tool against the work. i 18. In combination with a tool and a hammer and-a glass block, lever means controlling the hammer to move the hammer upwardly against the work, means to actuate the lever means including a spring tensioned element, means to connect the lever means to said element, and means tonormally hold said element depressed against the action of its spring and which upon release enables the element to move upwardly under the action of its spring thereby to actuate the lever means to move the hammer against the the tool and the tool against the work. I e

19. In a rectifying machine, a frame, a glass block holding means, a vertical threaded rod, a sleeve through which the rod is threaded, means to mount the sleeve for vertical reciprocal movement in the'frame, means connected to the sleeve to reciprocate same, means to turnably connect the rod to the hold- 40 ing means of the glass block, and means of lock the sleeve and rod in their adjusted relation.

20. In a rectifying machine, a frame, a glass block holding means, a vertically recip- 5 rocal member carried by the frame, means to adj ustably connect theholding means to the said member, and means to reciprocate said member, s a I In testimony whereof I aflix my signature.

Q50. WALKER w. MecARRoL 

